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ESP32 Polar H10 Receiver
FirmwareRecord workouts on a separate wearable gateway
This firmware records Bluetooth H10 heart rate, beat intervals and acceleration onto an ESP32 board. USB connection pauses recording and uploads sessions to a Raspberry Pi through MQTT messaging.
You need the board, battery, server and broker. Documented setup uses HiveMQ Cloud; current code disables TLS certificate verification.
- Keep readings off Polar’s cloud
- Record raw ECG locally
- On-board flash storage
- Raspberry Pi session dashboard
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How did it go? Tips, problems, questions…